X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 08 Nov 2008 21:51:48 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-junco.atl.sa.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3281989 for lml@lancaironline.net; Sat, 08 Nov 2008 11:26:00 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.63; envelope-from=rtitsworth@mindspring.com DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=mindspring.com; b=Xv9kcfK+iTmkC6eVAxYVc+5v1HWx3w68wLFGq+yWZsIliC9qiPapsKjG4lzGkliq; h=Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:X-MIMEOLE:In-Reply-To:Thread-Index:X-ELNK-Trace:X-Originating-IP; Received: from [71.238.59.21] (helo=BURTEKTP12) by elasmtp-junco.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1Kyqcm-0006yW-0Z for lml@lancaironline.net; Sat, 08 Nov 2008 11:25:24 -0500 From: "Rick Titsworth" X-Original-To: "'Lancair Mailing List'" References: Subject: RE: [LML] Re: Safety in our Community of Lancairs X-Original-Date: Sat, 8 Nov 2008 11:25:09 -0500 X-Original-Message-ID: <002e01c941be$9203e410$6400a8c0@Burtekinc.local> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002F_01C94194.A92DDC10" X-Mailer: Microsoft Office Outlook 11 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 In-Reply-To: Thread-Index: AclAbRjkbzFNy3U1QQq27qo5xhMAXgBTyPDw X-ELNK-Trace: b17f11247b2ac8f0a79dc4b33984cbaa0a9da525759e2654168b4148eb027b5d2ba5affaaf488c8cb3d6b29ebf2fd88f350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.238.59.21 This is a multi-part message in MIME format. ------=_NextPart_000_002F_01C94194.A92DDC10 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit All good info. But, as usually, we must be careful with the inferences from mis-used/mis-applied statistics. To relate that private pilots make up 35% of the total pilot population and 48% of GA accidents is pretty useless by itself. i.e. What percentage of airline and/or commercial flight accidents are attributed private pilots? Of course the answer is zero. That's because the population of all airline/commercial pilots and the population of all GA pilots are not the same. Thus, relating the % of GA pilot type accidents to the type % of the total pilot population (GA, commercial, and airline) is on the surface inconclusive and perhaps mis-leading. It could easily be that 60% of all GA pilots are private pilots and when associated with the 48% private pilot accident statistic above leads to the opposite conclusion that, in aggregate, the private pilots are actually less likely to be correlated with the accident rate (generally fly in better weather on local flights, etc). I'm all for ratings and training - but Jeff said "food for thought" - so I couldn't help but comment. _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of vtailjeff@aol.com Sent: Thursday, November 06, 2008 7:09 PM To: lml@lancaironline.net Subject: [LML] Re: Safety in our Community of Lancairs Here is more food for thought. Jeff -----Original Message----- From: Giffen Marr To: lml@lancaironline.net Sent: Wed, 5 Nov 2008 7:07 pm Subject: [LML] Re: Safety in our Community of Lancairs Jeff What is the vertical scale?? Giff From: vtailjeff@aol.com [ mailto:vtailjeff@aol.com] Sent: Tuesday, November 04, 2008 7:03 PM To: lml@lancaironline.net Subject: Safety in our Community of Lancairs Here is a pretty sobering chart. Jeff _____ McCain or Obama? Stay up to date on the latest from the campaign trail with AOL News. _____ Instant access to the latest & most popular FREE games while you browse with the Games Toolbar - Download Now! ------=_NextPart_000_002F_01C94194.A92DDC10 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

All good info.  But, as = usually, we must be careful with the inferences from mis-used/mis-applied = statistics.

To relate that private pilots make = up 35% of the total pilot population and 48% of GA accidents is pretty useless = by itself.

 

i.e. What percentage of airline = and/or commercial flight accidents are attributed private pilots?  Of course the = answer is zero.  That’s because the population of all airline/commercial pilots and = the population of all GA pilots are not the same.  Thus, relating the % = of GA pilot type accidents to the type % of the total pilot population (GA, = commercial, and airline) is on the surface inconclusive and perhaps = mis-leading.

 

It could easily be that 60% of all = GA pilots are private pilots and when associated with the 48% private pilot = accident statistic above leads to the opposite conclusion that, in aggregate, the private pilots are actually less likely to be correlated with the = accident rate (generally fly in better weather on local flights, = etc).

 

I’m all for ratings and = training – but Jeff said “food for thought” – so I couldn’t = help but comment.

 

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of vtailjeff@aol.com
Sent: Thursday, November = 06, 2008 7:09 PM
To: = lml@lancaironline.net
Subject: [LML] Re: Safety = in our Community of Lancairs

 

Here is more = food for thought.

Jeff


-----Original Message-----
From: Giffen Marr <gamarr@charter.net>
To: lml@lancaironline.net
Sent: Wed, 5 Nov 2008 7:07 pm
Subject: [LML] Re: Safety in our Community of = Lancairs

Jeff

What is = the vertical scale??

Giff

 

From: vtailjeff@aol.com [mailto:vtailjeff@aol.com] =
Sent: Tuesday, November = 04, 2008 7:03 PM
To: lml@lancaironline.net
Subject: Safety in our = Community of Lancairs

 

Here is a pretty sobering chart.

Jeff

 

=

McCain or Obama? Stay up to date = on the latest from the campaign trail with AOL = News.

 

=

Instant access to the latest & most popular FREE games while you browse with = the Games Toolbar - Download = Now!

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